New Technologies for Power Electronic Converters and Inverters

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 1479

Special Issue Editors

Department of Electronics, Electrical Engineering and Microelectronics, Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland
Interests: power electronics; power supply; inverters; control theory in power electronics; uninterruptible power supply
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Department of Marine Electronics, Gdynia Maritime University, Morska 81-87, 81-225 Gdynia, Poland
Interests: power electronic circuits; power LED supplies; power LED; light sensors; microcontrollers; soldering alloy uses in assembly LED diodes
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Special Issue Information

Dear Colleagues,

Efficient power conversion is one of the most critical problems in power electronics. DC/DC converters and DC/AC inverters are essential devices for power conversion. However, there are many other devices, including active rectifiers, power conditioning devices such as active power filters, power factor correctors, etc. Today, only switching mode solutions are used because of the low power losses. New technologies in switching components, such as wide band gap transistors (SiC, GaN) and new magnetic materials, enable faster switching with lower static and dynamic losses. Such inverters can drive high-speed electrical machines, where both smart control (e.g., modified SVM for the four-leg bridge), fast-switching components and additional circuits (the sinusoidal output filters that are absent in the standard motor drives) should be used. Supplying single-stage microinverters from renewable energy sources as the photovoltaic modules, requires a new inverter architecture (to reduce the common mode current from PV), new sinusoidal PWM schemes and new MPPT techniques. New storage energy components such as supercapacitors can be used in renewable energy-supplied systems. The new “redundant” architectures of multilevel inverters should lead to improved reliability. DC/DC converters can work in zero-voltage or zero-current switching modes to improve power efficiency. The impedance networks are recent DC/DC converter solutions. The more exact discrete model of the plant is required for the design of the sophisticated, microprocessor or FPGA, multi-input control of inverters and converters. The use of real-time interfaces (for MATLAB/Simulink) for experimental verification leads to a faster design process. Improving the EMC of switching-mode power devices is very important and can be useful for the hardware design and the software schema of the PWM modulation as well. Automotive applications of power conversion devices in hybrid or electrical cars require the development of power conversion designs.

This Special Issue will publish high-quality, original research papers in the fields of:

  • Implementing new technology components (new switching WBG components, new magnetic materials) and sophisticated control techniques to increase the efficiency of DC/DC converters and DC/AC inverters;
  • The study on the impact of the new components' usage on the control of converters and inverters;
  • Design, discrete modeling and multi-input control with the prediction of voltage and current source inverters with new technology components (new switching WBG components, new magnetic materials);
  • Increasing the reliability of multilevel inverters owing to their redundant architecture;
  • Increasing EMC of switched-mode converters and inverters based on the proper component choice and different PWM modulation schemas;
  • New architecture solutions of single-stage microinverters that are predicted to cooperate with photo voltaic modules to decrease the common mode current from the PV module to the ground;
  • The various maximum power point tracking algorithms in PV supply systems;
  • Power converters in modern automotive applications;
  • Driving high-speed induction and PMSM motors that require modified architecture inverters (e.g., four-leg three-phase bridge), high switching frequency and new switching components;
  • Implementing real-time interfaces (for MATLAB/Simulink) for the initial experimental verification;
  • Usage of supercapacitors in power conversion systems;
  • All other problems of new technologies for power electronic converters and inverters.

Prof. Dr. Zbigniew Rymarski
Prof. Dr. Przemysław Ptak
Guest Editors

Manuscript Submission Information

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Keywords

  • WBG transistors
  • SiC-MOSFET
  • GaN transistors
  • magnetic materials
  • multi-input single-output control
  • predictive control
  • PV modules
  • renewable energy
  • high-speed motor
  • real-time interface
  • supercapacitors
  • power factor correction
  • active power filters
  • power conditioning

Published Papers (2 papers)

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Research

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20 pages, 12224 KiB  
Article
High-Frequency Harmonic Suppression Strategy and Modified Notch Filter-Based Active Damping for Low-Inductance HPMSM
Appl. Sci. 2023, 13(20), 11309; https://doi.org/10.3390/app132011309 - 14 Oct 2023
Viewed by 749
Abstract
The voltage inverters have the high-frequency switching characteristic, which will generate massive high-frequency harmonics in the motors. Especially, the inductance of the high-speed permanent magnet synchronous motor (HPMSM) is designed to be small, and the high-frequency harmonic content will be higher than that [...] Read more.
The voltage inverters have the high-frequency switching characteristic, which will generate massive high-frequency harmonics in the motors. Especially, the inductance of the high-speed permanent magnet synchronous motor (HPMSM) is designed to be small, and the high-frequency harmonic content will be higher than that of ordinary motors, which adversely affects the system. To overcome this problem, this paper proposed a harmonic suppression method based on the LC filter and the adaptive notch filter for HPMSMs. The LC filter is connected between the inverter and the HPMSM to filter out high-frequency harmonics, however, at the cost of the system resonance. Therefore, the adaptive notch filter with the frequency tracking capability is designed to offset specific resonant peaks by constructing an antiresonant peak. The least mean square adaptive algorithm automatically adjusts the filter parameters according to the variation of the input signal to ensure accurate filtering in complex cases. Simulation and experiment results prove the practicability and effectiveness of the proposed scheme. The harmonic contents of HPMSM are significantly reduced, and the dynamic response performance of the control system is improved. Full article
(This article belongs to the Special Issue New Technologies for Power Electronic Converters and Inverters)
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Review

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19 pages, 4634 KiB  
Review
Technical Reviews of Power Loss Optimization in High-Frequency PSiPs—In Relation to Power Switches and Power Inductors
Appl. Sci. 2023, 13(24), 13166; https://doi.org/10.3390/app132413166 - 11 Dec 2023
Viewed by 487
Abstract
Power losses of switches and inductors are consistent challenges that hinder the development of high-frequency power supply in package (PSiP). This paper investigates the roadmap for power loss optimizations of switches and inductors in high-frequency PSiPs. Firstly, a size and parallel quantity design [...] Read more.
Power losses of switches and inductors are consistent challenges that hinder the development of high-frequency power supply in package (PSiP). This paper investigates the roadmap for power loss optimizations of switches and inductors in high-frequency PSiPs. Firstly, a size and parallel quantity design method to reduce power loss in an integrated Si LDMOSFET is provided with comprehensive consideration of switching frequency and power levels. Secondly, quality factors of different air-core inductors are analyzed with consideration of geometric parameters and skin effect, which provides the winding structure optimization to reduce power losses. The power losses of the integrated Si LDMOSFET and air-core inductors are both reduced to less than 10% of the output power at 1~100 MHz switching frequency and 0.1~10 W power level. Finally, based on the above optimizations, power losses of switches and inductors are calculated with switching frequency and power level. Combining the calculated results, this paper predicts the efficiency boundaries of PSiPs. Upon efficiency normalization with consideration of input and output voltage levels, all the predictions are consistent with the published literature. The efficiency predication error is 1~15% at 1~100 MHz switching frequency and 0.1~10 W power level. The above power loss optimizations improve the efficiency, which provides potential roadmaps for achieving high-frequency PSiPs. Full article
(This article belongs to the Special Issue New Technologies for Power Electronic Converters and Inverters)
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